The Alþingi is the national parliament of Iceland. It is the oldest surviving parliament in the world[, a claim shared by Tynwald. The Althing was founded in 930 at Þingvellir. Even after Iceland's union with Norway in 1262, the Althing still held its sessions until 1800, when it was discontinued for 45 years. It was restored in 1844 and moved to Reykjavík, where it has resided ever since.

Althing - dosł. zgromadzenie wszystkich - parlament Islandii zbiera się od 930 roku. Nie obradował jedynie w latach 1799 - 1844. Obecnie liczy 63 deputowanych.